Self-aligned insert



To all whom itmag] concern:

sEnr-AL enEn INSERT, I

Application filed April 19,

Be it known that I, l v AL'rEn WV. l/Vrrrm, a" citizen of theUnited States, anda resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, haveinvented a new and Improved Self-Aligned Insert, of which the following is a full-,clear, andexact description. T

This invention relates to insert's, and has particular reference to metallic orother-inserts' used in connection with concrete or cementitious body'portions.-

An object of the invention isto provide a simple, economically manufactured, compact insertwhich'when placed within a mold to be embedded in a concrete body) portionaligns itself properly and maintains its ali ment thereafter. 1

other object resides in the provision of means whereby this insert can be very readily attached to the mold board.

A further object resides in the provision of an insert which can be cast or made in one piece.

In general, the invention comprises an insert having a bod portion and a surface which is to be placer into a body of cementitious material in such manner that said surface will be flush with the surface of the cementitious material. It is proposed to provide projections or aligning members connected to the body portion and having end portions which are disposed around the insert in a plane parallel to the above-mentioned surface of the insert, so'that when this insert is placed on the mold board,

which represents the surface of the cementitious material about to be formed, the insert will be aligned with the flush surface in the proper position, and this position of the surface will be maintained during the pouring and formation of the cementitious bod The invention is illustrated in the draw ings, of which- Figure lis a longitudinal section taken through the body of cementitious material showing the insert in place;

Figure 2 isan inverted. plan view of the insert; and

Figure 3 is a perspective view of the insert.

The preferred embodiment of my invention, as shown in the drawings, is adapted to specificatioii of Letters Patent.

P t e at. 1921.-Seria1N'o. 462,735;1

be applied. in thegconstruction of concrete walls or ceilings or other similarflcemen-ug titiousbody portions. :In Fig. 11 represent;

a mold board Lwhich is'placed inposition.

enclosing or adjacent the space. in the .mold, to be ocupied by thebody of cementitious material, such as 2. Inbuildingsandsimi-z lar structures it is necessaryntozprovi'de' suite e able supports for such devices as pipes-or;

fiiitures, and for this purpose inserts have been'used. In Fig. 1,3 represents afmetallici insert in: therformof a hollow' plug having;

an interior threaded bore 4 one e'nd of which is open. The other end isrclosed byua'c'ore 5 in which an aperture 6 is disposed. The

.openend of the insert has annularsu're face 7 which, in Fig.1, is shown as disposed; flush against the surface of thesmold :board' 1. During the p'ouring and formation .of

the concrete bod-y pOrti npQfithi-s insert shouldbe maintained inits Rproper position; and after the concrete has formed and the insert is provided with thefi'xture or other 1 device which it is adapted to support, it is sometlmes found that the inserts work out of place because no particular means vare provided to maintain them in alignment.

However, in accordance with: my invention,

I have providedias a preferred form of my invention a plurality of aligning members or projections, such as-8, 9 and 10, which 7 in the 7 form shown assume the shape of shghtly tapered leg portions which project from the upper surface of'the plu 3 outwardly and downwardly. The under surface, such as 11, of these leg members are so constructed as tobe disposed in the plane of the annular end surface 7 of the plug 3.

Since, in accordance with the well-known lawsof geometry, three points determine ,a plane, it therefore results that, as .the surfaces 11 are disposed in the same plane with the surfaces 7 whenever this insert isplaced on a platform or a surface these three end surfaces 11 will automatically alignthe surface 7 in theplane of the supporting surface, such as the mold board 1, and that after the insert has been surrounded by the cementitious material 12 these leg portions or aligning members will tend to maintain the insert in its proper alignment as well as, to strengthfacilitate their being properlycast and molded, and the ends are shaped as nearly to a point as possible in order that, since they are flush with the surface of the wall or ceiling in whichthe insert is embedded, no more of their surfaces than necessary will be apparent to mar said wall or ceiling.

In order firmly to apply the insert to the mold board 1 in Fig. l, I have shown a nail, such as 12, which can be passed through the aperture 6 and thereafter into the mold board 1.

' It will, therefore, be apparent that I have provided a simple, strong and economically manufactured insert provided with aligning members, preferably formed therewith, which will automatically align itself with the plane of the surface upon which it is temporarily supported during the time in which it is being embedded in cementitious material.

Minor modifications may, of course, be made in the construction and arrangement of the parts without departing from the spirit of the invention.

What I claim is: 1. An insert for cementitious structures which comprises a hollow metallic cylinder closed at one end, said closed end having an aperture therein to receive means for fastening the insert on a support, the opposite end of the insert being open, said open end havingv a surface adapted to be disposed flush with the surface of the cementitious material, and at least three aligning legs extending outwardly and downwardly from the body portion, the ends of said leg members being disposed in the plane of the open-ended surface of the insert.

2. An insert for cementitious structures which comprises a hollow metallic cylinder olosed' at one end, said closed end having an aperture therein to receive means for fastening the insert on a support, the opposite end of the insert being open, said open end having a surface adapted to be disposed flush with the surface of the cementitious material, and at least three aligning leg members projecting outwardly and downwardly from the body portion at equal distances around the surface of the insert, the ends of said leg members being disposed in the plane of the open-ended surface of the insert.

3. An insert for concrete structures, which comprises a hollow plug having an open end adapted to be disposed flush with the con crete surface, and a plurality of legs extending in different directions from the upper end of the body portion downwardly and outwardly, the ends of the legs lying in a plane coincident with the open end of the body portion.

WALTER WARREN WHITE. 

